CN102059408B - Main shaft device for numerical controlled gear hobbing machine - Google Patents
Main shaft device for numerical controlled gear hobbing machine Download PDFInfo
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- CN102059408B CN102059408B CN 201010598801 CN201010598801A CN102059408B CN 102059408 B CN102059408 B CN 102059408B CN 201010598801 CN201010598801 CN 201010598801 CN 201010598801 A CN201010598801 A CN 201010598801A CN 102059408 B CN102059408 B CN 102059408B
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- main shaft
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Abstract
The invention discloses a main shaft device for a numerical controlled gear hobbing machine. The main shaft device comprises a cutter bar assembly, a cutter bar assembly clamping mechanism and a cutter changing mechanism, wherein the cutter bar assembly comprises a cutter bar, a hobbing cutter, a cutter regulating pad, an axle sleeve, a locking nut and a cutter bar blind rivet; the cutter bar assembly clamping mechanism consists of a square key and a claw assembly; and the cutter changing mechanism consists of a pull rod, a piston rod, a disc-shaped spring, a hydro-cylinder body, a flange plate, a bracket, a rotary joint and a spacing switch. The main shaft device has the advantages that: a hydrostatic bearing is arranged in the main shaft structure of the high-accuracy numerical controlled gear hobbing machine, so the main shaft device can constantly work under a heavy-load cutting condition; a main shaft has high accuracy and good accuracy retaining ability; and the cutter bar assembly with the hobbing cutter is arranged and set outside a machine in a cutter workshop; the cutter bar assembly is subjected to whole cutter changing on the gear hobbing machine; and the setting assisting time of the hobbing cutter does not occupy the total part machining time of a machine tool, so the whole machine tool has high working efficiency.
Description
Technical field
the present invention relates to a kind of main shaft device of chain digital control gear hobbing machine.
Background technology
The main shaft of the existing gear-hobbing machine of
China adopts sliding bearing structure more, because the in use special easy abrasion of this bearing, thereby often causes gear-hobbing machine can not bear the machining condition of heavy load because of the reduction and the retentivity difference of main shaft precision.In addition, manual operation is generally all adopted in the main shaft tool changing of existing gear-hobbing machine, when the knife bar of changing different size, hobboing cutter; At first need manually unclamp long draw, after knife bar, hobboing cutter are pulled down with the locking nut and the nut on the knife bar that manually unclamp on the long draw; New knife bar and hobboing cutter are installed, are locked long draw and nut again, after hobboing cutter is changed; Need again the trial cut processing parts to carry out tool setting; The replacing of hobboing cutter, the tool setting time is long, labor strength is big, total part processing time of tool setting absorb non-cutting time lathe of hobboing cutter, the inefficiency of lathe.
Summary of the invention
The technical problem that
the present invention will solve provides a kind of mainshaft mechanism of chain digital control gear hobbing machine, and this mainshaft mechanism has that bearing capacity is big, the main shaft centering precision high, precision stability is good, the outer tool setting of machine, the short characteristics of motor-driven whole tool change time.
The technical scheme of
chain digital control gear hobbing machine mainshaft mechanism of the present invention is: this mainshaft mechanism comprises knife bar assembly, knife bar assembly gripping mechanism and tool changing device; Wherein the structure of knife bar assembly is: hobboing cutter is fixed on the middle part of knife bar through flat key; In its both sides the toolsetting pad is housed, axle sleeve is contained in the left side of toolsetting pad, and the left end of knife bar is equipped with locking nut; Right-hand member has keyway, at the tail end of taper shank the knife bar blind rivet is housed.
The gripping mechanism of the knife bar assembly in
this mechanism is: have keyway in both sides, main shaft left side; The square key that matches with place, knife bar right side keyway is housed in the keyway; The claw assembly is housed in the endoporus of main shaft, and the claw hook in the claw assembly is corresponding with the cylinder boss of knife bar blind rivet.
The structure of tool changing device is in
this mechanism: the claw assembly is threaded with the left end of pull bar, and the right-hand member of pull bar is connected with piston rod thread; Between the face of the left end of the right side of main shaft right part slotted hole and piston rod, disk spring is housed; Cylinder body is contained in the afterbody of main shaft, and its right-hand member is equipped with ring flange, support successively; The left end of swivel joint is connected with piston rod thread, and limit switch assembly is equipped with in its underpart.
this mechanism also is provided with main shaft centering detent mechanism, comprises the back static pressure watt that is contained in left side in the hobboing cutter support body right-hand member cylindrical hole and the bidirectional propulsion roller bearing on right side.The left end of main shaft is through in the static pressure watt cylindrical hole of back, and the left side of bidirectional propulsion roller bearing withstands on the shaft shoulder of main shaft left part.
this device also comprises pull bar left end centering machine; Its concrete structure is: the left part at the hobboing cutter support body is equipped with traversing carriage; The ring flange of support taper hole left end watt is fixed on preceding static pressure in the support taper hole; Before slip cap is installed in the static pressure watt, between the cylindrical of the internal point of preceding static pressure watt and slip cap, deep groove ball bearing is housed, axle sleeve is contained in the slip cap.
the invention has the beneficial effects as follows: this high precision numerical control gear-hobbing machine main shaft device is equipped with hydrostatic bearing; Can be under the heavy load machining condition continuous firing; The main shaft precision is high, precision stability is good, and the knife bar assembly that hobboing cutter is housed is installed outside machine is carried out in the cutter workshop, tool setting, and the knife bar assembly carries out whole tool changing on gear-hobbing machine; The tool setting of hobboing cutter does not take total part processing time of lathe, lathe complete machine high efficiency non-cutting time.
Description of drawings
specify the present invention below in conjunction with the accompanying drawing and the specific embodiment.
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of embodiment 2.
Fig. 3 is the structural representation of embodiment 3.
Fig. 4 is the structural representation of embodiment 4.
Label among the figure:
1, nut 2, traversing carriage 3, toolsetting pad 4, hobboing cutter 5, hobboing cutter support body
6, axle sleeve 7, deep groove ball bearing 8, ring flange 9, preceding static pressure watts 10, sliding sleeve
11, knife bar 12, flat key 13, square key 14, knife bar blind rivet 15, claw assembly
16, back static pressure watts 17, pull bar 18, bidirectional propulsion roller bearing 19, ring flange
20, main shaft 21, disk spring 22, piston rod 23, piston 24, cylinder body
25, ring flange 26, support 27, swivel joint 28, limit switch assembly.
The specific embodiment
Example 1
are as shown in Figure 1; The mainshaft mechanism of chain digital control gear hobbing machine of the present invention comprises knife bar assembly, knife bar assembly clamping body and cutter-exchange mechanism, and wherein the structure of knife bar assembly is: hobboing cutter 4 is fixed on the middle part of knife bar 11 through flat key 12, in its both sides toolsetting pad 3 is housed; Axle sleeve 6 is contained in the left side of toolsetting pad 3; The left end of knife bar 11 is equipped with locking nut 1, and right-hand member has keyway, at the tail end of taper shank knife bar blind rivet 4 is housed.
Example 2
are as shown in Figure 2; Knife bar assembly clamping body is: have keyway in both sides, main shaft 20 left side; The square key 13 that matches with place, knife bar 11 right sides keyway is housed in the keyway; Claw assembly 15 is housed in the endoporus of main shaft 20, and the claw hook in the claw assembly 15 is corresponding with the cylinder boss of knife bar blind rivet 14.
main shaft centering detent mechanism comprises the back static pressure watts 16 that is contained in left side in the hobboing cutter support body 5 right-hand member cylindrical holes and the bidirectional propulsion roller bearing 8 on right side.The left end of main shaft 20 is through in static pressure watt 16 cylindrical holes of back, and the left side of bidirectional propulsion roller bearing 18 withstands on the shaft shoulder of main shaft 20 left parts.
Example 3
are as shown in Figure 3, and the structure of cutter-exchange mechanism is; Claw assembly 15 is threaded with the left end of pull bar 17, and pull bar 17 right-hand members are threaded with piston rod 22; Between the face of the right side of main shaft 20 right part slotted holes and piston rod 22 left ends, disk spring 21 is housed; Cylinder body 24 is contained in the afterbody of main shaft 20, and its right-hand member is equipped with ring flange 25, support 26 successively; The left end of swivel joint 27 is threaded with piston rod 22, and limit switch assembly 28 is equipped with in its underpart.
Example 4
are as shown in Figure 4; The concrete structure of pull bar left end centering machine is: the left part at hobboing cutter support body 5 is equipped with traversing carriage 2; The ring flange 8 of support taper hole left end is fixed on preceding static pressure watts 9 in the support taper hole; Before sliding sleeve 10 is installed in the static pressure watts 9, between the cylindrical of the internal point of preceding static pressure watts 9 and sliding sleeve 10, deep groove ball bearing 7 is housed, axle sleeve 6 is contained in the sliding sleeve 10.
Example 5
The assembly method of
chain digital control gear hobbing machine mainshaft mechanism knife bar assembly of the present invention: at first flat key 12 is installed in the middle part keyway of knife bar 11, the toolsetting pad 3 that will adjust thickness again is installed in the right side of knife bar 11, hobboing cutter 4 is installed in the middle part of knife bar 11; The toolsetting pad 3 of adjusting thickness is installed in the left side of knife bar 11; Axle sleeve 6 is installed in the left part of knife bar 11, the screwed hole of nut 1 is enclosed within on the knife bar 11 left end screw heads dextrorotation turn nut 1; Axle sleeve 6, toolsetting pad 3, hobboing cutter 4 are locked on the long external cylindrical surface of knife bar 11; The head of knife bar blind rivet 14 left part double-screw bolts is installed in the screwed hole of knife bar 11 taper shank afterbodys, and the knife bar blind rivet 14 that turns clockwise is with knife bar blind rivet 14 left sides and knife bar 11 afterbody right side snaps, locking; So far, the installation process of hobboing cutter on knife bar finishes.
Example 6
chain digital control gear hobbing machine mainshaft mechanism knife bar replacement of component of the present invention method: the left side that at first traversing carriage 2 is moved on to hobboing cutter support body 5; Press the button the loose cutter button on the station, with feeding the hydraulic oil that has certain pressure in the swivel joint 27, hydraulic oil flows in the right side oil pocket of cylinder body 24 through the fuel feed hole of piston rod 22 heads; Hydraulic oil promotion piston 23, piston rod 22, pull bar 17, claw assembly 15 move to main shaft 20 left sides; Left side boss in the claw assembly 15 promotes knife bar blind rivet 14 to the motion of main shaft 20 left sides, and when piston 23 arrived the limit on the left position of cylinder body 24, limit switch assembly 28 sent the signal of telecommunication that knife bar 11 has been thrown off; Hydraulic system stops in swivel joint 27, to feed hydraulic oil; The claw of claw assembly 15 opens at this moment, and the keyway of knife bar 11 is deviate from from the square key 13 that is contained in main shaft 20 end face both sides, and former knife bar 11 assemblies are changed; The knife bar that new hobboing cutter 4 is housed 11 assembly taper shanks are installed in the taper hole of main shaft 20; The keyway of knife bar 11 is aimed at the square key 13 of main shaft 20 end face both sides, press the button the lock cutter button on the station, the hydraulic oil oil return in the HYDRAULIC CONTROL SYSTEM swivel joint 27; Disk spring assembly 21 promotes piston rod 22, piston 23 to the motion of the right side of cylinder body 24; Piston rod 22 drives pull bar 16, claw assembly 15 moves to the right direction of main shaft 20, and the claw of claw assembly 15 hooks the knife bar blind rivet 14 that is contained in knife bar 11 afterbodys and moves to the right direction of main shaft 20, when the taper shank of knife bar 11 is close in the taper hole of main shaft 20; Piston 23 has arrived the limit on the left position of cylinder body 24; This moment, limit switch assembly 28 sent the signal of telecommunication that knife bar 11 has been locked, and so far, knife bar replacement of component process finishes.
Claims (1)
1. the main shaft device of a chain digital control gear hobbing machine; Comprise knife bar assembly, knife bar assembly clamping body and cutter-exchange mechanism, the structure of knife bar assembly is: hobboing cutter (4) is fixed on the middle part of knife bar (11) through flat key (12), and toolsetting pad (3) is housed in its both sides; Axle sleeve (6) is contained in the left side of toolsetting pad (3); The left end of knife bar (11) is equipped with locking nut (1), and right-hand member has keyway, at the tail end of taper shank knife bar blind rivet (14) is housed;
Knife bar assembly clamping body is: have keyway in main shaft (20) both sides, left side; The square key (13) that matches with place, knife bar (11) right side keyway is housed in the keyway; Claw assembly (15) is housed in the endoporus of main shaft (20), and the claw hook in the claw assembly (15) is corresponding with the cylinder boss of knife bar blind rivet (14); The structure of cutter-exchange mechanism is: claw assembly (15) is threaded with the left end of pull bar (17), and the right-hand member of pull bar (17) is threaded with piston rod (22); Between the left side of the right side of main shaft (20) right part slotted hole and piston rod (22), disk spring (21) is housed; Cylinder body (24) is contained in the afterbody of main shaft (20), and its right-hand member is equipped with ring flange (25), support (26) successively; The left end of swivel joint (27) is threaded with piston rod (22), and limit switch assembly (28) is equipped with in its underpart; This device also is provided with main shaft centering detent mechanism, comprises the back static pressure watt (16) that is contained in left side in hobboing cutter support body (5) the right-hand member cylindrical hole and the bidirectional propulsion roller bearing (18) on right side; The left end of main shaft (20) is through in static pressure watt (16) cylindrical hole of back, and the left side of bidirectional propulsion roller bearing (18) withstands on the shaft shoulder of main shaft (20) left part; This device also comprises with lower link left end centering machine: the left part at hobboing cutter support body (5) is equipped with traversing carriage (2); The ring flange (8) of support taper hole left end is fixed on preceding static pressure watt (9) in the support taper hole; Slip cap (10) is installed in the preceding static pressure watt (9); Between the cylindrical of the internal point of preceding static pressure watt (9) and slip cap (10), deep groove ball bearing (7) is housed, axle sleeve (6) is contained in the slip cap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010598801 CN102059408B (en) | 2010-12-21 | 2010-12-21 | Main shaft device for numerical controlled gear hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010598801 CN102059408B (en) | 2010-12-21 | 2010-12-21 | Main shaft device for numerical controlled gear hobbing machine |
Publications (2)
| Publication Number | Publication Date |
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| CN102059408A CN102059408A (en) | 2011-05-18 |
| CN102059408B true CN102059408B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010598801 Active CN102059408B (en) | 2010-12-21 | 2010-12-21 | Main shaft device for numerical controlled gear hobbing machine |
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| CN (1) | CN102059408B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513863A (en) * | 2012-01-05 | 2012-06-27 | 重庆格恩格机床有限公司 | Knife holder of machine tool |
| CN102784972A (en) * | 2012-08-15 | 2012-11-21 | 江苏沙龙机电科技有限公司 | High-precision mini-type four-shaft linkage numerical control gear-hobbing machine |
| CN103111638B (en) * | 2013-02-04 | 2015-05-27 | 常州工学院 | Quick-replacing-type hob main shaft of numerically-controlled gear hobbing machine |
| CN103341646A (en) * | 2013-07-02 | 2013-10-09 | 上海三一精机有限公司 | Knife holder for mounting and driving knife and small-module-number gear machining center |
| CN104001991B (en) * | 2014-06-13 | 2016-01-27 | 重庆机床(集团)有限责任公司 | Gear-hobbing machine knife bar automatic tensioner |
| CN104308198B (en) * | 2014-09-28 | 2016-08-24 | 浙江日创机电科技有限公司 | A kind of main shaft device for direct-drive type numerical control hobbing knife rest |
| CN104439556B (en) * | 2014-12-29 | 2016-08-03 | 威海华东重工有限公司 | Heavy accurate digital control gear-hobbing machine hob head |
| CN104785806A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Tool bar structure of numerical control machine tool |
| CN105458307B (en) * | 2016-01-15 | 2018-01-30 | 重庆机床(集团)有限责任公司 | A kind of high rigidity, high-precision hobboing cutter main shaft support drive mechanism |
| CN106238832B (en) * | 2016-09-30 | 2018-07-10 | 浙江日创机电科技有限公司 | A kind of straight knife rest for driving gear-hobbing machine |
| CN106424970B (en) * | 2016-09-30 | 2018-07-10 | 浙江日创机电科技有限公司 | A kind of chain digital control gear hobbing machine |
| CN108188495B (en) * | 2017-11-24 | 2019-07-12 | 江阴市永兴机械制造有限公司 | A kind of gear-hobbing machine knife bar automatic tensioner |
| CN108941627B (en) * | 2018-09-14 | 2023-07-14 | 长春科技学院 | Drilling device for main shaft of numerical control lathe |
| CN109604733A (en) * | 2018-12-04 | 2019-04-12 | 攀枝花市润莹齿轮有限责任公司 | A kind of hobboing cutter box assembly of gear-hobbing machine |
| CN109317766A (en) * | 2018-12-04 | 2019-02-12 | 宁波德凯数控机床有限公司 | A kind of knife bar of gear-hobbing machine and the link structure of tail end |
| CN110625146A (en) * | 2019-09-19 | 2019-12-31 | 石钢京诚装备技术有限公司 | Boring machine cutter arbor chucking device |
| CN112077633B (en) * | 2020-09-16 | 2022-05-31 | 深圳山源电器股份有限公司 | Cutter changing device and method for gear shoveling machine |
| CN113927102B (en) * | 2021-11-03 | 2023-11-10 | 南京中船绿洲机器有限公司 | Spliced heavy hobbing cutter bar and mounting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0852982A1 (en) * | 1997-01-09 | 1998-07-15 | Zexel Corporation | Method for rotationally driving gear material when hob machining is performed, and gear |
| US6450740B1 (en) * | 2000-04-24 | 2002-09-17 | Deere & Company | Mechanical gear hob with stock divide by differential gear box |
| CN201061839Y (en) * | 2007-06-19 | 2008-05-21 | 郑州市建安中原机器制造有限公司 | Hobbing machine |
| CN101298106A (en) * | 2008-06-24 | 2008-11-05 | 重庆大学 | Zero-drive chain digital control gear hobbing machine |
| CN201217078Y (en) * | 2008-06-24 | 2009-04-08 | 重庆大学 | Low-speed large-torque workpiece primary shaft apparatus of horizontal zero-drive chain gear hobber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11291125A (en) * | 1998-04-13 | 1999-10-26 | Mitsubishi Heavy Ind Ltd | Gear hobbing machine |
-
2010
- 2010-12-21 CN CN 201010598801 patent/CN102059408B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0852982A1 (en) * | 1997-01-09 | 1998-07-15 | Zexel Corporation | Method for rotationally driving gear material when hob machining is performed, and gear |
| US6450740B1 (en) * | 2000-04-24 | 2002-09-17 | Deere & Company | Mechanical gear hob with stock divide by differential gear box |
| CN201061839Y (en) * | 2007-06-19 | 2008-05-21 | 郑州市建安中原机器制造有限公司 | Hobbing machine |
| CN101298106A (en) * | 2008-06-24 | 2008-11-05 | 重庆大学 | Zero-drive chain digital control gear hobbing machine |
| CN201217078Y (en) * | 2008-06-24 | 2009-04-08 | 重庆大学 | Low-speed large-torque workpiece primary shaft apparatus of horizontal zero-drive chain gear hobber |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-291125A 1999.10.26 |
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| CN102059408A (en) | 2011-05-18 |
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